| SIC code | SIC Text
| NAICS code | NAICS Text
|
| 0119 | Cash Grains, NEC (oilseed, except soybean farming) | 111120 | Oilseed (except Soybean) Farming |
| 0119 | Cash Grains, NEC (dry pea and bean farms) | 111130 | Dry Pea and Bean Farming |
| 0115 | Corn | 111150 | Corn Farming |
| 0119 | Cash Grains, NEC (popcorn farming) | 111150 | Corn Farming |
| 0119 | Cash Grains, NEC (oilseed and grain combination farms) | 111191 | Oilseed and Grain Combination Farming |
| 0119 | Cash Grains, NEC (except popcorn, soybean, and dry pea and bean, and oilseed and grain combination farms) | 111199 | All Other Grain Farming |
| 0174 | Citrus Fruits (orange groves and farms) | 111310 | Orange Groves |
| 0174 | Citrus Fruits (except orange groves and farms) | 111320 | Citrus (except Orange) Groves |
| 0131 | Cotton | 111920 | Cotton Farming |
| 0252 | Chicken Eggs | 112310 | Chicken Egg Production |
| 0724 | Cotton Ginning | 115111 | Cotton Ginning |
| 0721 | Crop Planting, Cultivating, and Protecting | 115112 | Soil Preparation, Planting, and Cultivating |
| 0722 | Crop Harvesting, Primarily by Machine | 115113 | Crop Harvesting, Primarily by Machine |
| 0723 | Crop Preparation Services For Market, Except Cotton Ginning (except custom grain grinding) | 115114 | Postharvest Crop Activities (except Cotton Ginning) |
| 1311 | Crude Petroleum and Natural Gas | 211111 | Crude Petroleum and Natural Gas Extraction |
| 1021 | Copper Ores | 212234 | Copper Ore and Nickel Ore Mining |
| 1422 | Crushed and Broken Limestone | 212312 | Crushed and Broken Limestone Mining and Quarrying |
| 1423 | Crushed and Broken Granite | 212313 | Crushed and Broken Granite Mining and Quarrying |
| 1429 | Crushed and Broken Stone, NEC | 212319 | Other Crushed and Broken Stone Mining and Quarrying |
| 1442 | Construction Sand and Gravel | 212321 | Construction Sand and Gravel Mining |
| 1459 | Clay, Ceramic, and Refractory Minerals, NEC | 212325 | Clay and Ceramic and Refractory Minerals Mining |
| 1479 | Chemical and Fertilizer Mineral Mining, NEC | 212393 | Other Chemical and Fertilizer Mineral Mining |
| 1241 | Coal Mining Services | 213113 | Support Activities for Coal Mining |
| 4939 | Combination Utilities, NEC (hydroelectric power generation) | 221111 | Hydroelectric Power Generation |
| 4939 | Combination Utilities, NEC (fossil fuel power generation) | 221112 | Fossil Fuel Electric Power Generation |
| 4939 | Combination Utilities, NEC (nuclear power generation) | 221113 | Nuclear Electric Power Generation |
| 4939 | Combination Utilities, NEC (other electric power generation) | 221119 | Other Electric Power Generation |
| 4939 | Combination Utilities, NEC (electric power transmission and control) | 221121 | Electric Bulk Power Transmission and Control |
| 4939 | Combination Utilities, NEC (electric power distribution) | 221122 | Electric Power Distribution |
| 4939 | Combination Utilities, NEC (natural gas distribution) | 221210 | Natural Gas Distribution |
| 7353 | Construction Equipment Rental and Leasing (construction equipment with operator) | 234990 | All Other Heavy Construction |
| 1771 | Concrete Work (stucco construction) | 235420 | Drywall, Plastering, Acoustical, and Insulation Contractors |
| 1751 | Carpentry Work | 235510 | Carpentry Contractors |
| 1771 | Concrete Work (except stucco construction) | 235710 | Concrete Contractors |
| 0723 | Crop Production Services for Market, Except Cotton Ginning (custom grain grinding) | 311119 | Other Animal Food Manufacturing |
| 2074 | Cottonseed Oil Mills (cottonseed processing) | 311223 | Other Oilseed Processing |
| 2074 | Cottonseed Oil Mills (processing purchased cottonseed oil) | 311225 | Fats and Oils Refining and Blending |
| 2043 | Cereal Breakfast Foods (breakfast cereal) | 311230 | Breakfast Cereal Manufacturing |
| 2061 | Cane Sugar, Except Refining | 311311 | Sugarcane Mills |
| 2062 | Cane Sugar Refining | 311312 | Cane Sugar Refining |
| 2066 | Chocolate and Cocoa Products (except chocolate products, made from purchased chocolate) | 311320 | Chocolate and Confectionery Manufacturing from Cacao Beans |
| 2064 | Candy and Other Confectionery Products (chocolate confectionery) | 311330 | Confectionery Manufacturing from Purchased Chocolate |
| 2066 | Chocolate and Cocoa Products (chocolate products made from purchased chocolate) | 311330 | Confectionery Manufacturing from Purchased Chocolate |
| 5441 | Candy, Nut, and Confectionery Stores (chocolate candy stores, preparing on premises) | 311330 | Confectionery Manufacturing from Purchased Chocolate |
| 2064 | Candy and Other Confectionery Products (nonchocolate confectionery ) | 311340 | Nonchocolate Confectionery Manufacturing |
| 5441 | Candy, Nut, and Confectionery Stores (nonchocolate candy stores, preparing on premises) | 311340 | Nonchocolate Confectionery Manufacturing |
| 2067 | Chewing Gum | 311340 | Nonchocolate Confectionery Manufacturing |
| 2033 | Canned Fruits, Vegetables, Preserves, Jams, and Jellies | 311421 | Fruit and Vegetable Canning |
| 2032 | Canned Specialties (except canned puddings) | 311422 | Specialty Canning |
| 2021 | Creamery Butter | 311512 | Creamery Butter Manufacturing |
| 2091 | Canned and Cured Fish and Seafood | 311711 | Seafood Canning |
| 2052 | Cookies and Crackers (unleavened bread and soft pretzels) | 311812 | Commercial Bakeries |
| 2052 | Cookies and Crackers (except unleavened bread and pretzels) | 311821 | Cookie and Cracker Manufacturing |
| 2052 | Cookies and Crackers (pretzel, except soft) | 311919 | Other Snack Food Manufacturing |
| 2043 | Cereal Breakfast Foods (coffee substitute) | 311920 | Coffee and Tea Manufacturing |
| 2899 | Chemical Preparations, NEC (table salt) | 311942 | Spice and Extract Manufacturing |
| 2032 | Canned Specialties (canned puddings) | 311999 | All Other Miscellaneous Food Manufacturing |
| 2111 | Cigarettes | 312221 | Cigarette Manufacturing |
| 2121 | Cigars | 312229 | Other Tobacco Product Manufacturing |
| 2131 | Chewing and Smoking Tobacco and Snuff | 312229 | Other Tobacco Product Manufacturing |
| 2295 | Coated Fabrics, Not Rubberized | 313320 | Fabric Coating Mills |
| 2273 | Carpets and Rugs | 314110 | Carpet and Rug Mills |
| 2391 | Curtains and Draperies | 314121 | Curtain and Drapery Mills |
| 2394 | Canvas and Related Products | 314912 | Canvas and Related Product Mills |
| 2298 | Cordage and Twine | 314991 | Rope, Cordage, and Twine Mills |
| 2653 | Corrugated and Solid Fiber Boxes | 322211 | Corrugated and Solid Fiber Box Manufacturing |
| 2679 | Converted Paper and Paperboard Products, NEC (corrugated paper) | 322211 | Corrugated and Solid Fiber Box Manufacturing |
| 2672 | Coated and Laminated Paper, NEC | 322222 | Coated and Laminated Paper Manufacturing |
| 2679 | Converted Paper and Paperboard Products, NEC (wallpaper and gift wrap paper) | 322222 | Coated and Laminated Paper Manufacturing |
| 2679 | Converted Paper and Paperboard Products, NEC (paper supplies for business machines and other paper office | 322231 | Die-Cut Paper and Paperboard Office Supplies Manufacturing |
| 2679 | Converted Paper and Paperboard Products, NEC ( other converted paper and paperboard products, such as pap | 322299 | All Other Converted Paper Product Manufacturing |
| 2752 | Commercial Printing, Lithographic (except quick printing) | 323110 | Commercial Lithographic Printing |
| 2754 | Commercial Printing, Gravure | 323111 | Commercial Gravure Printing |
| 2759 | Commercial Printing, NEC (flexographic printing) | 323112 | Commercial Flexographic Printing |
| 2759 | Commercial Printing, NEC (screen printing) | 323113 | Commercial Screen Printing |
| 2752 | Commercial Printing, Lithographic (quick printing) | 323114 | Quick Printing |
| 2759 | Commercial Printing, NEC (quick printing) | 323114 | Quick Printing |
| 2759 | Commercial Printing, NEC (digital printing, except quick printing) | 323115 | Digital Printing |
| 2759 | Commercial Printing, NEC (other commercial printing except quick printing) | 323119 | Other Commercial Printing |
| 2865 | Cyclic Organic Crudes and Intermediates, and Organic Dyes and Pigments (aromatics) | 325110 | Petrochemical Manufacturing |
| 2865 | Cyclic Organic Crudes and Intermediates, and Organic Dyes and Pigments (organic dyes and pigments) | 325132 | Synthetic Organic Dye and Pigment Manufacturing |
| 2895 | Carbon Black | 325182 | Carbon Black Manufacturing |
| 2865 | Cyclic Organic Crudes and Intermediates and Organic Dyes and Pigments (except aromatics and organic dyes | 325192 | Cyclic Crude and Intermediate Manufacturing |
| 2899 | Chemical and Chemical Preparations, NEC (fatty acids) | 325199 | All Other Basic Organic Chemical Manufacturing |
| 2823 | Cellulosic Manmade Fibers | 325221 | Cellulosic Organic Fiber Manufacturing |
| 2899 | Chemicals and Chemical Preparations, NEC (frit) | 325510 | Paint and Coating Manufacturing |
| 3087 | Custom Compounding of Purchased Plastics Resin | 325991 | Custom Compounding of Purchased Resins |
| 2899 | Chemicals and Chemical Preparations, NEC (except frit and table salt) | 325998 | All Other Miscellaneous Chemical Product and Preparation Manufacturing |
| 3253 | Ceramic Wall and Floor Tile | 327122 | Ceramic Wall and Floor Tile Manufacturing |
| 3255 | Clay Refractories | 327124 | Clay Refractory Manufacturing |
| 3241 | Cement, Hydraulic | 327310 | Cement Manufacturing |
| 3271 | Concrete Block and Brick | 327331 | Concrete Block and Brick Manufacturing |
| 3272 | Concrete Products, Except Block and Brick (concrete pipe) | 327332 | Concrete Pipe Manufacturing |
| 3272 | Concrete Products, Except Block and Brick (concrete products, except dry mix concrete and pipe) | 327390 | Other Concrete Product Manufacturing |
| 3281 | Cut Stone and Stone Products | 327991 | Cut Stone and Stone Product Manufacturing |
| 3272 | Concrete Products, Except Block and Brick (dry mixture concrete) | 327999 | All Other Miscellaneous Nonmetallic Mineral Product Manufacturing |
| 3316 | Cold-Rolled Steel Sheet, Strip and Bars | 331221 | Rolled Steel Shape Manufacturing |
| 3366 | Copper Foundries | 331525 | Copper Foundries (except Die-Casting) |
| 3466 | Crowns and Closures | 332115 | Crown and Closure Manufacturing |
| 3421 | Cutlery (except tool-type shears) | 332211 | Cutlery and Flatware (except Precious) Manufacturing |
| 3421 | Cutlery (tool-type shears) | 332212 | Hand and Edge Tool Manufacturing |
| 3545 | Cutting Tools, Machine Tools Accessories, and Machinist Precision Measuring Devices (precision measuring | 332212 | Hand and Edge Tool Manufacturing |
| 3479 | Coating, Engraving, and Allied Services, NEC (except jewelry, silverware, and flatware engraving and etch | 332812 | Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers |
| 3531 | Construction Machinery and Equipment (except railway track maintenance equipment; winches, aerial work pl | 333120 | Construction Machinery Manufacturing |
| 3578 | Calculating and Accounting Machines, Except Electronic Computers (change making machines) | 333311 | Automatic Vending Machine Manufacturing |
| 3582 | Commercial Laundry, Drycleaning and Pressing Machines | 333312 | Commercial Laundry, Drycleaning, and Pressing Machine Manufacturing |
| 3578 | Calculating and Accounting Machinery, Except Electronic Computers (except point of sales terminals, chang | 333313 | Office Machinery Manufacturing |
| 3545 | Cutting Tools, Machine Tool Accessories, and Machinists' Precision Measuring Devices (except precision me | 333515 | Cutting Tool and Machine Tool Accessory Manufacturing |
| 3535 | Conveyors and Conveying Equipment | 333922 | Conveyor and Conveying Equipment Manufacturing |
| 3531 | Construction Machinery and Equipment (winches, aerial work platforms, and automobile wrecker hoists) | 333923 | Overhead Traveling Crane, Hoist, and Monorail System Manufacturing |
| 3572 | Computer Storage Devices | 334112 | Computer Storage Device Manufacturing |
| 3575 | Computer Terminals | 334113 | Computer Terminal Manufacturing |
| 3577 | Computer Peripheral Equipment, NEC (except plotter controllers and magnetic tape cleaners) | 334119 | Other Computer Peripheral Equipment Manufacturing |
| 3578 | Calculating and Accounting Machines, Except Electronic Computers (point of sale terminals and fund transf | 334119 | Other Computer Peripheral Equipment Manufacturing |
| 3669 | Communications Equipment, NEC | 334290 | Other Communications Equipment Manufacturing |
| 3577 | Computer Peripheral Equipment, NEC (plotter controllers) | 334418 | Printed Circuit Assembly (Electronic Assembly) Manufacturing |
| 3577 | Computer Peripheral Equipment, NEC (magnetic tape cleaners) | 334613 | Magnetic and Optical Recording Media Manufacturing |
| 3646 | Commercial, Industrial, and Institutional Electric Lighting Fixtures | 335122 | Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing |
| 3643 | Current-Carrying Wiring Devices | 335931 | Current-Carrying Wiring Device Manufacturing |
| 3624 | Carbon and Graphite Products | 335991 | Carbon and Graphite Product Manufacturing |
| 3592 | Carburetors, Pistons, Piston Rings, and Valves | 336311 | Carburetor, Piston, Piston Ring, and Valve Manufacturing |
| 3531 | Construction Machinery and Equipment (railway track maintenance equipment) | 336510 | Railroad Rolling Stock Manufacturing |
| 3479 | Coating, Engraving, and Allied Services, NEC (jewelry engraving and etching, including precious metal) | 339911 | Jewelry (except Costume) Manufacturing |
| 3479 | Coating, Engraving, and Allied Services, NEC (silver and plated ware engraving and etching) | 339912 | Silverware and Hollowware Manufacturing |
| 3479 | Coating, Engraving, and Allied Services, NEC (costume jewelry engraving and etching) | 339914 | Costume Jewelry and Novelty Manufacturing |
| 3961 | Costume Jewelry and Costume Novelties, Except Precious Metal | 339914 | Costume Jewelry and Novelty Manufacturing |
| 3955 | Carbon Paper and Inked Ribbons | 339944 | Carbon Paper and Inked Ribbon Manufacturing |
| 5039 | Construction Materials, NEC (sold via wholesale method) | 421390 | Other Construction Material Wholesalers |
| 5045 | Computers and Computer Peripherals Equipment and Software (except computers, equipment, and software sold | 421430 | Computer and Computer Peripheral Equipment and Software Wholesalers |
| 5046 | Commercial Equipment, NEC | 421440 | Other Commercial Equipment Wholesalers |
| 5052 | Coal and Other Mineral and Ores | 421520 | Coal and Other Mineral and Ore Wholesalers |
| 5082 | Construction and Mining (Except Petroleum) Machinery and Equipment | 421810 | Construction and Mining (except Oil Well) Machinery and Equipment Wholesalers |
| 5145 | Confectionery | 422450 | Confectionery Wholesalers |
| 5169 | Chemicals and Allied Products, NEC | 422690 | Other Chemical and Allied Products Wholesalers |
| 5045 | Computers and Computer Peripheral Equipment and Software (sold via retail method) | 443120 | Computer and Software Stores |
| 5734 | Computer and Computer Software Stores | 443120 | Computer and Software Stores |
| 7378 | Computer Maintenance and Repair (retailing new computers from a storefront and repairing computers) | 443120 | Computer and Software Stores |
| 5946 | Camera and Photographic Supply Stores | 443130 | Camera and Photographic Supplies Stores |
| 5039 | Construction Materials, NEC (Wholesale) (glass, sold via retail method) | 444190 | Other Building Material Dealers |
| 5441 | Candy, Nut and Confectionery Stores | 445292 | Confectionery and Nut Stores |
| 5641 | Children's and Infants' Wear Stores | 448130 | Children's and Infants' Clothing Stores |
| 5961 | Catalog and Mail-Order Houses | 454110 | Electronic Shopping and Mail-Order Houses |
| 4899 | Communications Services, NEC (taxi cab dispatch services) | 485310 | Taxi Service |
| 4612 | Crude Petroleum Pipelines | 486110 | Pipeline Transportation of Crude Oil |
| 4215 | Courier Services, Except by Air (hub and spoke intercity delivery) | 492110 | Couriers |
| 4215 | Courier Services, Except by Air (local delivery) | 492210 | Local Messengers and Local Delivery |
| 4841 | Cable and Other Pay Television Services (cable networks) | 513210 | Cable Networks |
| 4841 | Cable and Other Pay Television Services (except cable networks) | 513220 | Cable and Other Program Distribution |
| 4899 | Communications Services, NEC (ship-to-shore broadcasting) | 513322 | Cellular and Other Wireless Telecommunications |
| 4899 | Communications Services, NEC (satellite communications) | 513340 | Satellite Telecommunications |
| 4899 | Communications Services, NEC (except radio dispatch, ship-to-shore, and satellite communications) | 513390 | Other Telecommunications |
| 7374 | Computer Processing and Data Preparation and Processing Services | 514210 | Data Processing Services |
| 7379 | Computer Related Services, NEC (disk and diskette conversion and recertification) | 514210 | Data Processing Services |
| 6029 | Commercial Banks, NEC | 522110 | Commercial Banking |
| 6061 | Credit Unions, Federally Chartered | 522130 | Credit Unions |
| 6062 | Credit Unions, Not Federally Chartered | 522130 | Credit Unions |
| 6019 | Central Reserve Depository Institutions, NEC | 522298 | All Other Nondepository Credit Intermediation |
| 6221 | Commodity Contracts Brokers and Dealers (commodity dealers) | 523130 | Commodity Contracts Dealing |
| 6221 | Commodity Contracts Brokers and Dealers (commodity brokers) | 523140 | Commodity Contracts Brokerage |
| 7377 | Computer Rental and Leasing | 532420 | Office Machinery and Equipment Rental and Leasing |
| 7336 | Commercial Art and Graphic Design | 541430 | Graphic Design Services |
| 7371 | Computer Programming Services | 541511 | Custom Computer Programming Services |
| 7373 | Computer Integrated Systems Design | 541512 | Computer Systems Design Services |
| 7379 | Computer Related Services, NEC (computer systems consultants) | 541512 | Computer Systems Design Services |
| 7376 | Computer Facilities Management Services | 541513 | Computer Facilities Management Services |
| 7379 | Computer Related Services, NEC (except computer systems consultants and disk and diskette conversion and | 541519 | Other Computer Related Services |
| 8731 | Commercial Physical and Biological Research | 541710 | Research and Development in the Physical, Engineering, and Life Sciences |
| 8732 | Commercial Economic, Sociological, and Educational Research (social sciences and humanities) | 541720 | Research and Development in the Social Sciences and Humanities |
| 8732 | Commercial Economic, Sociological, and Educational Research (market research and opinion research) | 541910 | Marketing Research and Public Opinion Polling |
| 7335 | Commercial Photography (except when combined with a variety of aircraft based services) | 541922 | Commercial Photography |
| 7323 | Credit Reporting Services | 561450 | Credit Bureaus |
| 7217 | Carpet and Upholstery Cleaning | 561740 | Carpet and Upholstery Cleaning Services |
| 8221 | Colleges, Universities, and Professional Schools | 611310 | Colleges, Universities, and Professional Schools |
| 8351 | Child Day Care Services | 624410 | Child Day Care Services |
| 7993 | Coin-Operated Amusement Devices (amusement arcades) | 713120 | Amusement Arcades |
| 7993 | Coin-Operated Amusement Devices (slot machine operators) | 713290 | Other Gambling Industries |
| 7542 | Carwashes | 811192 | Car Washes |
| 7378 | Computer Maintenance and Repair (except retailing new computers from a storefront and repairing) | 811212 | Computer and Office Machine Repair and Maintenance |
| 6553 | Cemetery Subdividers and Developers | 812220 | Cemeteries and Crematories |
| 7215 | Coin-Operated Laundry and Drycleaning | 812310 | Coin-Operated Laundries and Drycleaners |
| 8641 | Civic, Social, and Fraternal Organizations (except condominium and homeowner associations) | 813410 | Civic and Social Organizations |
| 8641 | Civic, Social, and Fraternal Organizations (condominium and homeowner associations) | 813990 | Other Similar Organizations (except Business, Professional, Labor, and Political Organizations) |
| 8641 | Civic, Social, and Fraternal Organizations (Indian Tribal Councils) | 921150 | American Indian and Alaska Native Tribal Governments |
| 9211 | Courts | 922110 | Courts |
| 9223 | Correctional Institutions | 922140 | Correctional Institutions |
